What was found
AIRCRAFT ON GND FOR HEAVY MX, FAILSAFE INSPECTION. FLOOR FRAME UPPER CHORD CORRODED AT STATION 1263, LBL 31 AROUND NUTPLATES. R & R STATION 1263 FLOORBEAM UPPER CHORD IAW SRM 51-40-02 & DWG 146T1208.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT ON GND FOR HEAVY MX, FAILSAFE INSPECTION. FLOOR FRAME UPPER CHORD CORRODED AT STATION 1263, LBL 31 AROUND NUTPLATES. R & R STATION 1263 FLOORBEAM UPPER CHORD IAW SRM 51-40-02 & DWG 146T1208.